In a world where unspoken words linger beyond death, 'shigofumi' are the letters that bridge the gap between the living and the deceased. Fumika, a reticent and enigmatic figure, is tasked with delivering these letters filled with intense emotions like love, regret, and anger. Accompanied by the articulate magic staff Kanaka, she ensures that each message, no matter how painful, reaches its destined recipient. Through these deliveries, Fumika delves into the poignant stories of both the departed and the living, unraveling their hidden truths. Yet, shrouded in mystery is Fumika's own past, leaving unanswered questions about who she was before taking on the role of a shigofumi carrier.